CN1995897A

CN1995897A - Condenser and case integrated heat pipe

Info

Publication number: CN1995897A
Application number: CN 200710000057
Authority: CN
Inventors: 刘海云
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-08
Filing date: 2007-01-08
Publication date: 2007-07-11

Abstract

The invention relates to a box heating pipe of condenser. The heat pipe is the gravity heat pipe, which is integrated together by condenser and machine shell or machine box. The heat pipe comprises evaporator, condenser, working substance and pipe between them. The heat pipe is characterized in that the machine shell or machine box is used as the condenser of heat pipe and metal pipe connected with each other is used as the skeleton of machine shell or machine box. The skeleton is used as the condensing tube and metal plates connected with said skeleton is used as radiation sheets. The evaporator of heat pipe is connected with parts, in which heat dissipation or conduction is needed, on the machine in the shell or box. Certain working substance is sealed in the heat pipe and non-working substance such as air is pumped or eliminated. The air is not favor of evaporating and condensing the working substance in the working temperature range.

Description

Condenser and case integrated heat pipe

Technical field

The present invention is a kind of casing that uses machine or the shell heat pipe as condenser.

Background of invention

Along with development of computer, the computational speed of CPU is more and more faster on the computer, and it is also increasing that meanwhile CPU goes up the heat that produces, and this heat dissipation equipment to computer is had higher requirement.If adopt the fan radiation fin that generally uses now, the power of fan further will be strengthened undoubtedly.This life-span to computer is totally unfavorable, because after fan uses a period of time, many fans can produce stronger vibration at rotation process, influence contacting between each accessory and slot on the mainboard, cause occurring contact problems, fan easily blows into dust slit between accessory and the slot on the other hand, cause computer when having a humid climate, to be difficult to start, and the noise that fan sends makes user's distraction, has reduced operating efficiency; If adopt heat pipe to add this technology of fan, still may have above-mentioned disadvantage, and price be more expensive; If the water-cooled cabinet that adopts micro pump to drive, more because of consumptive material, price is too expensive.The objective of the invention is for both integral body that permeate heat pipe and machine cabinet or shell (below be referred to as cabinet), so that a kind of heat pipe that does not need fan or micro pump also can realize high efficiency and heat radiation function and double as cabinet is provided, for prolong the computer life-span as far as possible, the interior heat abstractor of cabinet is not made a noise possibility is provided.So-called heat pipe is to be closed with operation material within it also when evaporimeter is heated work, the liquid operation material heat absorption evaporation that is in the evaporimeter becomes gas, under the effect of saturated air pressure reduction, enter condenser pipe, and the heat radiation condensation becomes liquid and flow back into the container that evaporimeter continues periodic duty under capillary force or gravity effect in condenser pipe.Heat pipe requires do not have other to hinder the material that operation material undergoes phase transition and flows usually except operation material in its enclosed cavity, this requirement will be taken out the air in it on the one hand and inoperative material volatile and that change because of being heated is disposed in order to reach, and it will be sealed, makes the material in its inner chamber not contact fully with external environment condition on the other hand.According to the major impetus source that hydraulic fluid refluxes, heat pipe can be divided into gravity assisted heat pipe and capillary force heat pipe.Heat pipe among the present invention is a kind of gravity assisted heat pipe.

Summary of the invention

In the present invention, the skeleton of machine cabinet and metal tube that be interconnected good with heat conductivility made, and these metal tubes just serve as the condenser pipe of heat pipe.In heat pipe of the present invention, have a part of condenser pipe and be in below the operating fluid level.Only be in above this part of operating fluid level during heat pipe work and could produce the effect of condensation working gas, can give the hydraulic fluid radiating and cooling and be in this part pipeline below the operating fluid level, but can not bring into play condensation, this paper is referred to as condenser pipe with these two parts for ease of statement.Each panel that links to each other with condenser pipe on the cabinet adopts heat conductivility good metal plate.Metallic plate serves as fin, and this condenser pipe and fin have constituted condenser jointly.In the cabinet the inside evaporimeter of making of the heat conductivility good metal is set.The radiating surface of heat generating components can closely be attached to one in the outer surface of the heated walls of this evaporimeter and the machine.Can lay tube core on the evaporimeter heated walls inner surface or offer groove, but also both dual-purposes.With a blast pipe exhaust nozzle on evaporimeter top is linked to each other with suction nozzle on the condenser pipe, link to each other with the apocenosis mouth of condenser pipe bottom with the liquid inlet port of a feed tube with base of evaporator.Evaporimeter, blast pipe, condenser pipe, feed tube are being connected into a cavity that is interconnected, and after guaranteeing to clean up, in its cavity, injecting a certain amount of hydraulic fluid such as water, alcohol etc., then will air wherein taking out, good seal.Here it is the heat pipe that uses whole cabinet as condenser, the i.e. alleged condenser and case integrated heat pipe of this paper.

Description of drawings:

Fig. 1 is the structural representation of heat pipe embodiment among the present invention.

Fig. 2 is for to be applied to the computer cabinet rearview with heat pipe among the present invention.

Fig. 3 is applied to the computer cabinet stereogram for observing from the left front with heat pipe the present invention.

Fig. 4 is applied to the computer cabinet stereogram for observing from the right front with heat pipe the present invention.

The specific embodiment

Referring to Fig. 1, this there is shown the structural representation after heat pipe that the present invention is applied to desktop computer CPU heat radiation is removed cabinet panel.In this embodiment, use the skeleton of aluminum pipe as computer cabinet, each aluminum pipe on skeleton is interconnected, and the condenser pipe 2 that these aluminum pipes that are interconnected are exactly this embodiment heat pipe is made an evaporimeter 1 with copper or aluminium.The heated walls of evaporimeter 1 is plane and more bigger than the contact-making surface on the CPU, and it is maximum that the cross section of the cavity of evaporimeter 1 at the operating fluid level place should be.An exhaust nozzle is arranged on the top of evaporimeter 1, this ozzle can move outward and spend towards outer incline 45, a liquid inlet port is arranged at the bottom of evaporimeter, this ozzle is perpendicular to the cabinet bottom, two ozzles so are provided with so that cabinet is set level when keeping in repair, heat pipe still has an ozzle on liquid level, and an ozzle guarantees that under liquid level heat pipe still can operate as normal.The present invention is a kind of gravity assisted heat pipe, owing in gravity assisted heat pipe, be in the effect that the following condenser pipe of liquid level can not be brought into play condensation, so its heat dissipation is not as good as being in the above condenser pipe of liquid level.For this reason, we can turn the mainboard in the cabinet around installation, reduce the position of CPU, reduce the operating fluid level of heat pipe, improve the radiating efficiency of heat pipe.Referring to Fig. 2, Fig. 3, Fig. 4, on the cabinet except a panel be drop front 16 detachable, all the other each panels all are fixed on the cabinet, so that reduce the thermal resistance between each panel and the condenser pipe.On each cabinet panel, press close to the condenser pipe place and some semicircle apertures and some can be set perpendicular to the narrow slit of condenser pipe the most nearby.

With the blast pipe 3 of an energy bending suction nozzle that is on the operating fluid level on the exhaust nozzle on evaporimeter 1 top and the condenser pipe 2 is linked to each other, link to each other with the apocenosis mouth that condenser pipe 2 bottoms are under the operating fluid level with the feed tube 4 of an energy bending liquid inlet port with evaporimeter 1 bottom.The requirements for pipes of these two energy bendings can be born for a long time in the pipe and is the condition of vacuum.If use plastic tube, satisfy this condition, spiral wire or hairspring should be arranged in the plastics of plastic tube, to strengthen its withstand voltage performance, require plastic tube material physics, the chemical property adopted highly stable in addition, even be in for a long time under the operating temperature, the phenomenon that can produce certain gas, also can not leak air because of volatilization or chemical reaction not in the junction.At blast pipe 3, feed tube 4 evaporimeter 1 and condenser pipe 2 are connected and to be closed with water or other hydraulic fluid in the cavity that is constituted, the height of hydraulic fluid should make heat pipe liquid level in the evaporimeter when work equal with the CPU top or a little more than the CPU top.

(dotted arrow is represented gas flow direction among the figure referring to Fig. 1, solid arrow express liquid flow direction), when computer operation, the heated walls of heat on the CPU by evaporimeter 1 passes on the hydraulic fluid in the evaporimeter 1, make the liquid gasification, the gas that produces enters the blast pipe 3 from exhaust nozzle, enter condenser pipe 2 along blast pipe 3, condenser pipe 2 sheds heat by the cabinet panel that connects thereon, gas is condensed into liquid behind the dissipated heat in condenser pipe 2, these liquid flow back to evaporimeter 1 continuation periodic duty under the gravity effect.

When this heat pipe is applied to computer, just can cancel the fan on the CPU.For some caloric values is not very big computer, we in addition chassis power supply can be moved on to the bottom of computer, on the condenser pipe 2 of this embodiment heat pipe, connect an evaporimeter in addition, and this evaporimeter is arranged on the heat generating member or fin of power supply, the heat that sends on the power supply is transferred on the cabinet by the gas that produces in the evaporimeter passes in the external environment condition again, so just can cancel the fan on the power supply, thereby realize that really desktop computer does not have fan work.

Claims

1, a kind of have the gravity assisted heat pipe of operation material at enclosed vacuum chamber inner sealing, and described heat pipe comprises:

With the condenser that machine casing or cabinet combine together, promptly, as condenser pipe, use the metal decking that is connected on the skeleton as fin with this skeleton with the skeleton of the metal tube conduct that interconnects as machine casing or cabinet;

Be fixed on the parts that need in the machine to dispel the heat or conduct heat, be suitable for making the evaporimeter of operation material gasification;

After hydraulic fluid was heated and becomes gas in the evaporimeter, it was blast pipe that this gas flows to the passage that condenser pipe flows through from evaporimeter;

Working gas is after condensation becomes liquid in condenser pipe, this liquid under the gravity effect from condenser pipe flow back to evaporimeter the passage of process be feed tube.

2, heat pipe as claimed in claim 1 is characterized in that, utilizes radiation and the convection current of ambient gas or liquid thereof of condenser in external environment condition to make the condenser cooling.

3, heat pipe as claimed in claim 1 is characterized in that, condenser is forced to cool off.

As claim 2,3 described heat pipes, it is characterized in that 4, the contact-making surface of thermal source parts is plane on evaporimeter and the machine.

5, as claim 2,3 described heat pipes, it is characterized in that evaporimeter is columniform.

6, as claim 2,3 described heat pipes, it is characterized in that evaporimeter is columnar, and the thermal source parts are in cylindrical center on the machine.

7, as claim 4,5,6 described heat pipes, it is characterized in that, have the semicircle or circular aperture of bar shaped or rectangle on the metal decking of condenser.

8, heat pipe as claimed in claim 7 is characterized in that, the blast pipe, the feed tube that connect evaporimeter and condenser are flexible.

9, heat pipe as claimed in claim 8 is characterized in that, exhaust nozzle inclination 45 degree on the evaporimeter.